Gamboge (/ɡæmˈboʊʒ/gam-BOHZH, /ɡæmˈboʊdʒ/gam-BOHJ, or /ɡæmˈbuːʒ/gam-BOOZH) is a partially transparent deep saffron to mustard yellow pigment. It is used to dye Buddhist monks' robes because the color is a deep tone of saffron, the traditional color used for the robes of Theravada Buddhist monks.
Read more about Gamboge: Production, Etymology, New Gamboge, Gamboge in Human Culture